Slow cooker



FIG. 1 is a perspective view of a slow cooker showing a new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a top plan view thereof.

The bottom of the slow cooker (not shown) forms no part of the claimed design.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a slow cooker, as shown and described. 